Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
  • A01N43/647—Triazoles; Hydrogenated triazoles
  • A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
  • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
  • A01N43/50—1,3-Diazoles; Hydrogenated 1,3-diazoles
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
  • A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
  • A01N43/78—1,3-Thiazoles; Hydrogenated 1,3-thiazoles
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
  • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
  • A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
  • A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring

Definitions

• the present invention relates to a method of controlling plant disease.
• Patent Document 1 It is known a method of controlling plant disease characterized by treating seeds with at least one effective microorganism having an antagonistic action against a pathogen of a plant disease, and at least one inducer inducing a systemic resistance of a plant (see, Patent Document 1, for example).
• Patent Document 2 it is also known a method of controlling clubroot characterized by subjecting a soil to mixing, irrigation, planting hole treatment, root treatment, row treatment or sowed ditch treatment with a specific chemical formulation.
• Patent Document 1 JP-A 2003-034607
• Patent Document 2 JP-A 2005-350387
• the present inventors have found, after intensive study, that more excellent controlling effects compared with the conventional controlling methods can be exerted by attaching a fungicidal active compound selected from 3-(3-bromo-6-fluoro-2-methylindol-1-ylsulfonyl)-N,N-dimethyl- 1H-1,2,4-triazole-1-sulfonamide; cyazofamid, fluazinam, ethaboxam and benthiavalicarb to a seed of a plant, or applying (spraying or irrigating) the fungicidal active compound to cultivation soil between pre-sowing and post-covering with soil.
• a fungicidal active compound selected from 3-(3-bromo-6-fluoro-2-methylindol-1-ylsulfonyl)-N,N-dimethyl- 1H-1,2,4-triazole-1-sulfonamide
• cyazofamid fluazinam
• the present invention relates to a method of controlling plant disease described in any one of the following (1) to (6) (hereinafter referred to as method of the present invention), and a plant seed described in the following (7) or (8) (hereinafter referred to as seed of the present invention).
• a method of controlling plant disease characterized by comprising attaching at least one fungicidal active compound selected from 3-(3-bromo-6-fluoro-2-methylindol-1-ylsulfonyl)-N,N-dimethyl-1H-1,2,4-triazole-1-sulfonamide, cyazofamid, fluazinam, ethaboxam and benthiavalicarb to a seed of a plant, or applying the at least one fungicidal active compound to cultivation soil between pre-sowing and post-covering with soil.
• at least one fungicidal active compound selected from 3-(3-bromo-6-fluoro-2-methylindol-1-ylsulfonyl)-N,N-dimethyl-1H-1,2,4-triazole-1-sulfonamide, cyazofamid, fluazinam, ethaboxam and benthiavalicarb
• a method of controlling plant disease characterized by comprising attaching at least one fungicidal active compound selected from 3-(3-bromo-6-fluoro-2-methylindol-1-ylsulfonyl)-N,N-dimethyl-1H-1,2,4-triazole-1-sulfbnamide, cyazofamid, fluazinam, ethaboxam and benthiavalicarb to a seed of a plant.
• at least one fungicidal active compound selected from 3-(3-bromo-6-fluoro-2-methylindol-1-ylsulfonyl)-N,N-dimethyl-1H-1,2,4-triazole-1-sulfbnamide, cyazofamid, fluazinam, ethaboxam and benthiavalicarb to a seed of a plant.
• a method of controlling plant disease characterized by comprising applying at least one fungicidal active compound selected from 3-(3-bromo-6-fluoro-2-methylindol-1-ylsulfonyl)-N,N-dimethyl-1H-1,2,4-triazole-1-sulfonamide, cyazofamid, fluazinam, ethaboxam and benthiavalicarb to cultivation soil between pre-sowing and post-covering with soil.
• at least one fungicidal active compound selected from 3-(3-bromo-6-fluoro-2-methylindol-1-ylsulfonyl)-N,N-dimethyl-1H-1,2,4-triazole-1-sulfonamide, cyazofamid, fluazinam, ethaboxam and benthiavalicarb
• fungicidal active compound is a compound selected from 3-(3-bromo-6-fluoro-2-methylindol-1-ylsulfonyl)-N,N-dimethyl-1H-1,2,4-triazole-1-sulfonamide and cyazofamid.
• fungicidal active compound is a compound selected from 3-(3-bromo-6-fluoro-2-methylindol-1-ylsulfonyl)-N,N-dimethyl-1H-1,2,4-triazole-1-sulfbnamide and cyazofamid.
• the fungicidal active compound selected from Compound A, cyazofamid, fluazinam, ethaboxam and benthiavalicarb is a compound having controlling activity against diseases that Mastigomycotina or clubroot fungus causes.
• active compounds of agricultural chemicals can be used in addition to the above-mentioned fungicidal active compound.
• the active compounds of agricultural chemicals include herbicides, insecticides, acaricides, nematocides, bactericides, antivirals, plant growth regulators, fungicides, synergists, attractants, repellents, and biopesticides, etc.
• Specific generic names (or chemical names) of the active compounds of agricultural chemicals for example are as follows, but not limited to these.
• Fungicides acibenzolar-S-methyl, acylaminobenzamide, acypetacs, aldimorph, amobam, ampropyfos, anilazine, allyl alcohol, aureofungin, azaconazole, azithiram, azoxystrobin, barium polysulfide, benalaxyl, benodanil, benomyl, benquinox, bentaluron, benthiazole, benzalkonium chloride, benzamacril, benzamorf, benzohydroxamic acid, binapacryl, biphenyl, bitertanol, bithionol, bethoxazine, bordeaux mixture, boscalid, blasticidin-S, bromoconazole, bupirimate, buthiobate, butylamine, calcium polysulfide, captafol, captan, copper oxychloride, carpropamid, carba
• Bactericides streptomycin, tecloftalam, oxyterracycline, and oxolinic acid, etc.
• Biopesticides Agrobacterium radiobacter, Pseudomonas fluorescens, Pseudomonas sp. CAB-02, Bacillus subtilis, non-pathogenic Erwinia carotovora subsp. carotovora, Trichodrema sp. (Tricoderma atroviride), Talaromyces flavus, Xanthomonas campestris (Xanthomonas campestris pv.
• the plant seeds used in the present invention include not only seeds of food crops and seeds of vegetables, but also tubers of potato and the like, tubers of sweetpotato and the like, and bulbs of flowering plants, etc.
• the food crops include a family of wheat such as oats, barley, wheat, rye and the like, gramineous crops such as rice, corn and the like, legume crops such as adzuki beans, common beans, peas and the like, other pulses such as broad beans, soy beans, peanuts and the like, potatoes, sweetpotatoes, buckwheat and the like.
• the vegetables include spinach, turnip, cauliflower, cabbage, komatsuna, Japanese radishes, Chinese cabbage, broccoli, qing geng cai, wasabi, pumpkins, cucumbers, oriental pickling melons, watermelons, melons, burdocks, garland chrysanthemums, romaine lettuce, butterburs, aroids, ginger, Japanese ginger, Japanese parsley, celery, carrots, parsley, Japanese honewort, red peppers, green peppers, tomatoes, eggplants, strawberrys, asparagus, onions, Welsh onions, leeks, garlic, Welsh onions, rakkyo (Allium Chinese), wakegi green onions and the like.
• Industrial crops include cottons, beets, rapeseeds, sugar canes, sesame, tobaccos, konnyaku and the like.
• the flowering plants include chrysanthemums, carnations, roses, stocks, gentians, perennial gypsophila, orchids, statices, gerbera daisies, Eustomas, tulips, lilies, gladioluses, freesias, irises, narcissuses, common marigolds, marguerites, sunflower and the like.
• the methods for attaching the active compounds of agricultural chemicals include a coating and granulation method, a gel coating method (see, JP-A 2002-000011 ), a dressing treatment and the like to which the present invention is not specifically limited so long as it is a method by which the active compound can be attached to a seed.
• the coating and granulation method comprises adhering a coating material composed of an active compound of agricultural chemicals, a binder and the like on the surface of a seed, and then subjecting to blowing drying or forced drying.
• a coating material composed of an active compound of agricultural chemicals, a binder and the like
• several granulation apparatuses such as a seed dresser, a fluidized bed granulator, a rolling granulator, a pan-type granulator and the like can be used.
• the coating material can contain a dust diluent, a surfactant, a plasticizer, a colorant, a preservative, a water repellent agent, an anticaking agent, antidecomposer and the like, in addition to an active compound of agricultural chemicals, and a binder.
• the binder includes a water-soluble binder and a water-insoluble binder.
• the water-soluble binder includes for example a modified starch such as dextrin (roasted dextrin and enzyme-modified dextrin, etc.), an acid-disintegrated starch, an oxidized starch, alpha starch, etherized starch (carboxymethyl starch, hydroxyalkyl starch and cation starch, etc.), esterized starch (acetic acid starch, and phosophoric acid starch, etc.), crosslinked starch and grafted starch, and the like, native material such as sodium alginate, gum Arabic, gelatin, gum tragacanth, locust bean gum and casein and the like, cellulose derivative such as carboxymethyl cellulose sodium salt, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, methylcellulose, ethylcellulose and acetylcellulose and the like, and other polymers such as polyvinyl methyl ether, polyethylene glycol, polypropylene glycol, poly
• the water-insoluble binder includes for example a water-insoluble thermoplastic such as polyvinyl acetate, a copolymer of vinyl acetate with ethylene, a copolymer of vinyl acetate with vinyl versatate, a coplymer of vinyl acetate, ethylene and vinyl chloride, polyacrylic acid ester, a copolymer of acrylic acid ester with styrene, a copolymer of acrylic acid ester with silicone, a copolymer of acrylic acid ester with ethylene, polyurethane, a copolymer of styrene with butadiene and a copolymer of acrylonitrile with butadiene, and the like, and a thermosetting resin such as amino resin (urea resin and melamine resin, etc.), phenol resin (resol resin and novolak resin, etc.), resorcinol formaldehyde resin, xylene resin, furan resin, epoxy resin, polyisocyanate-type adhesive, uns
• the epoxy resin includes for example bisphenol A type epoxy compound, bisphenol F type epoxy compound, novolak type epoxy compound, aliphatic epoxy compound, alicyclic type epoxy compound, glycidylamine type epoxy compound and glycidyl ester type epoxy compound and the like.
• the curing agent for the epoxy resin includes for example polyamide type, aliphatic polyamine type, alicyclic polyamine type, aromatic polyamine type and hetrocyclic amine type, etc.
• the dust diluent includes for example natural minerals such as quartz, calcite, sepiolite, dolomite, chalk, kaolinite, pyrofilite, sericite, halocite, metahalocite, kibushi-clay, gairome-clay, pottery stone, zeeklite, allophane, shirasu, kira, talc, bentonite, pumite, attapulgite, zeolite and diatomaceous earth, etc., calcined products of natural minerals such as calcined clay, perlite, shirasu balloon, vermiculite, attapulgus clay and calcined diatomaceous earth, etc., inorganic salts such as magnesium carbonate, calcium carbonate, sodium carbonate, sodium hydrogen carbonate, ammonium sulfate, sodium sulfate, magnesium sulfate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate and potassium chloride, etc.
• the surfactant includes the following (A), (B), (C), (D) and (E).
• A-2 Polyvalent alcohol type surfactant: for example glycerol fatty acid ester, polyglycerin fatty acid ester, pentaerythrithol fatty acid ester, sorbitol fatty acid (C 12-18 ) ester, sorbitan fatty acid (C 12-18 ) ester, sucrose fatty acid ester, polyvalent alcohol alkyl ether and fatty acid alkanolamide, and so on.
• Acetylene based surfactant for example acetylene glycol, acetylene alcohol, ethylene oxide adduct of acetylene glycol and ethylene oxide adduct of acetylene alcohol, and so on.
• A-4) Other surfactant: for example alkylglycoside, and so on.
• Carboxylic acid type surfactant for example carboxylic acid such as polyacrylic acid, polymethacrylic acid, polymaleic acid, a copolymer of maleic acid with olefin (for example isobutylene and diisobutylene, etc.), a copolymer of acrylic acid with itaconic acid, a copolymer of methacrylic acid with itaconic acid, a copolymer of maleic acid with styrene, a copolymer of acrylic acid with methacrylic acid, a copolymer of acrylic acid with methyl acrylate, a copolymer of acrylic acid with vinyl acetate, a copolymer of acrylic acid with maleic acid, N-methyl-fatty acid (C 12-18 ) sarcocinate, resin acid and fatty acid (C 12-18 ), and so on, and salts of these carboxylic acids.
• carboxylic acid such as polyacrylic acid, polymethacrylic acid, polymaleic acid,
• Sulfuric acid ester type surfactant for example sulfuric acid ester such as alkyl(C 12-18 ) sulfuric acid ester, polyoxyethylene alkyl (C 12-18 ) ether sulfuric acid ester, polyoxyethylene (mono- or di-) alkyl(C 8-12 ) phenyl ether sulfuric acid ester, sulfuric acid ester of polyoxyethylene (mono- or di-) alkyl(C 8-12 ) phenyl ether polymer, polyoxyethylene (mono-, di- or tri-) phenylphenyl ether sulfuric acid ester, polyoxyethylene (mono-, di- or tri-) benzylphenyl ether sulfuric acid ester, polyoxyethylene (mono-, di- or tri-) styrylphenyl ether sulfuric acid, sulfuric acid ester of polyoxyethylene (mono-, di- or tri-) styrylphenyl ether polymer, sulfuric acid ester of polyoxyethylene (mono-
• Sulfonic acid type surfactant for example sulfonic acid such as paraffin (C 12-22 ) sulfonic acid, alkyl(C 8-12 ) benzene sulfonic acid, formalin condensed product of alkyl(C 8-12 ) benzene sulfonic acid, formalin condensed product of cresol sulfonic acid, ⁇ -olefin (C 14-16 ) sulfonic acid, dialkyl (C 8-12 ) sulfosuccic acid, lignin sulfonic acid, polyoxyethylene (mono- or di-) alkyl(C 12-18 )phenyl ether sulfonic acid, polyoxyethylene alkyl(C 12-18 ) ether sulfosuccinic acid half ester, naphthalene sulfonic acid (mono- or di-) alkyl(C 1-6 ) naphthalene sulfonic acid, formal
• Phosphoric acid ester type surfactant for example phosphoric acid ester such as alkyl(C 8-12 ) phosphoric acid ester, polyoxyethylene alkyl(C 12-18 ) ether phosphoric acid ester, polyoxyethylene (mono- or di-) alkyl(C 8-12 ) phenyl ether phosphoric acid ester, phosphoric ester of polyoxyethylene (mono-, di- or tri-) alkyl(C 8-12 ) phenyl ether polymer, polyoxyethylene (mono-, di- or tri-) phenylphenyl ether phosphoric acid ester, polyoxyethylene (mono-, di- or tri-) benzylphenyl ether phosphoric acid ester, polyoxyethylene (mono-, di- or tri-) styrylphenyl ether phosphoric acid ester, phosphoric acid ester of polyoxyethylene (mono-, di- or tri-) styrylphenyl ether phosphoric
• the salts in the above-mentioned (B-1) to (B-4) include alkali metals (lithium, sodium and potassium, etc.), alkaline earth metals (calcium and magnesium, etc.), ammonium and several amines (for example alkyl amine, cycloalkyl amine and alkanol amine, etc.), and so on.
• the cationic surfactant includes for example alkyl amine salts and alkyl quaternary ammonium salt, and so on.
• amphoteric surfactant includes for example betaine type surfactant and amino acid type surfactant, and so on.
• surfactant includes for example silicone based surfactant and fluorine based surfactants, and so on. These surfactants can be used alone or in combination of two or more of them.
• the gel coating method is a method that has developed for further improving germination promotion of plant seeds, and prevention of growth insufficiency and growth promotion after sowing, and requires to enclose plant seeds into an aqueous gel capsule.
• the aqueous gel forming the capsule includes sodium alginate, gellan gum, xanthane gum, locust bean gum, carboxymethyl cellulose, pectin, gelatin, carrageenan, sodium polyacrylate and agar, and so on. Some of these gels require the presence of a metal ion for gelation. When such a gel is used, a salt, an alkali or the like that provides the metal ion is suitably added. Further, several preservatives, fertilizer components, growth accelerators and the like can be suitably added.
• the aqueous gel capsule containing seed can be produced by forming a liquid drop of an aqueous solution having an aqueous gel forming polymer at the tip of a narrow tube, adding one or more seeds into the liquid drop by use of a narrow tube, and then adding dropwise it into a coagulation liquid having an action of making the liquid drop coagulate.
• gas such as air, oxygen or the like can be enclosed, if necessary.
• the coagulation liquid includes a liquid containing divalent metal such as calcium, barium or the like, or ion of aluminum or the like, and the salts of them, for example lactic acid salts (these are solid) and an aqueous solution thereof are used.
• divalent metal such as calcium, barium or the like, or ion of aluminum or the like
• the salts of them for example lactic acid salts (these are solid) and an aqueous solution thereof are used.
• potassium aluminum sulfate (potassium alum) aqueous solution can be also used.
• aqueous gel capsule Active compound of agricultural chemicals 0.1-50 parts Plant seed 5-94.8 parts Gel-forming polymer 0.1-10 parts Coagulation liquid 0-5 parts Water 5-50 parts Others 0-30 parts As others, for example, a fertilizer component, a colorant, an anticaking agent, a preservative, an antidecomposer or the like can be included.
• the dressing treatment is a method in which a dust formulation or a wettable powder containing an active compound of agricultural chemicals is directly sprinkled on a plant seed, and in principle, the method comprises stirring a seed wetted with water or a seed as such with a solid or liquid agricultural formulation in a container to attach an active compound of agricultural chemicals on the surface of the seed or inside the seed.
• the dressing treatment in the present invention includes dust coating method, slurry method and liquid agent immersion method.
• the treating formulation for dressing plant seeds may be an agricultural formulation as such or be prepared by diluting it with water.
• the agricultural formulations include, for example, soluble concentrate, emulsifiable concentrate, wettable powder, water soluble powder, water dispersible granule, water soluble granule, suspension concentrate, concentrated emulsion, suspoemulsion, microemulsion, and gel, and so on.
• the above-mentioned agricultural formulation can be obtained through mixing with an appropriate solid or liquid carrier and further, if desirable, adding a surfactant, a penetrant, a spreader, a thickener, a cryoprotectant, a binder, an anticaking agent, a disintegrant, an antifoamer, a preservative and an antidecomposer, and so on.
• the solid carriers include for example natural minerals such as quartz, kaolinite, pyrophylite, sericite, talc, bentonite, acid clay, attapulgite, zeolite, and diatomaceous earth, etc., inorganic salts such as calcium carbonate, ammonium sulfate, sodium sulfate, and potassium chloride, etc., synthetic silica and synthetic silicate, natural polymers such as wheat, starch, crystal cellulose, calboxymethyl cellulose, and gelatin, etc., saccharides such as glucose, mantose, lactose, and sucrose, etc., and urea, and so on.
• natural minerals such as quartz, kaolinite, pyrophylite, sericite, talc, bentonite, acid clay, attapulgite, zeolite, and diatomaceous earth, etc.
• inorganic salts such as calcium carbonate, ammonium sulfate, sodium sulfate, and potassium chloride
• Liquid carriers include for example alcohols such as ethylene glycol, propylene glycol, and isopropanol, etc., aromatic hydrocarbons such as xylene, alkylbenzen and alkyl naphthalene, etc., ethers such as butyl cellosolve, etc.; ketones such as cyclohexanone, etc., esters such as ⁇ -butylolactone, etc., acid amides such as N-methylpyrrolidone and N-octylpyrrolidone, etc., vagetable oils such as soybean oil, rapeseed oil, cottonseed oil, and castor oil, etc., and water.
• alcohols such as ethylene glycol, propylene glycol, and isopropanol, etc.
• aromatic hydrocarbons such as xylene, alkylbenzen and alkyl naphthalene, etc.
• ethers such as butyl cellosolve, etc.
• ketones such
• solid and liquid carriers can be used alone or in combination of two or more of them.
• Surfactants include surfactants exemplified for the coating and granulation method.
• the surfactants can be used alone or in combination of two or more of them.
• the dust coating method comprises stirring plant seeds with a solid formulation such as a dust formation or a wettable powder in a container to attach an active compound of agricultural chemicals to the plant seeds.
• the method for dressing seeds with a liquid formulation or a liquid obtained by diluting a solid formulation with water includes slurry method and liquid agent immersion method.
• the slurry method is an improved one of the dust coating method, and comprises dipping a solid formulation in a small amount of water (to give a slurry or liquid state), stirring it with seeds in a container to attach an active compound of agricultural chemicals to the seeds.
• liquid formulation as such or the liquid formulation diluted with water can be used.
• the liquid agent immersion method is a method in which plant seeds are immersed by placing a formulation as such or a solution of the formulation diluted with water in a container to permeate the formulation inside the seeds. After immersing in the liquid formulation, the seeds may be dried in air.
• the time for immersion is not specifically limited. When diluting is carried out, surfactants or the like can be added in addition to water.
• a mixer for treating seeds a fertilizer mixer, a plastic bag, or a plastic sheet can be used, and the kind of the container is not specifically limited.
• the seeds subjected to dressing treatment may be dried and preserved, or sown without drying.
• the agricultural formulations can be generally diluted from 1- to 20000-fold with water and applied.
• the amount of active compound of agricultural chemicals that is attached according to coating and granulation method, gel coating method or dressing treatment is 1 to 10000 parts by weight per 100 kg of seeds.
• fungicides in the present invention, other fungicides, herbicides, insecticides, plant growth regulators or fertilizers can be applied simulataneously with sowing of treated seeds.
• formulations that can be used for the above-mentioned dressing treatment or those obtained by diluting them with water can be used.
• dilution it is desirable to generally dilute from 1- to 20000-fold with water and use.
• the present invention covers preferably the following three phases, during each of which an application to cultivation soil between pre-sowing and post-covering with soil is made.
• the method of applying the treating formulation in each phase is as follows:
• the amount of treating water in the second phase is 0.0001 ml to 250 ml per seed.
• the used amount thereof is desirably 0.0001 to 50 parts by weight per seed.
• the amount of the active compound of agricultural chemicals is desirably 0.00001 to 10 parts by weight per seed.
• the amount of the active compound of agricultural chemicals in the first and third phases is 0. 1 to 1000 parts by weight per 10 are.
• the method of the present invention can be applied for diseases causing in paddy, field and a nursery of seedlings.
• Specific diseases that can be controlled are as follows, but the present invention is not limited to them.
• the diseases include the followings:
• the diseases against which the present invention exerts a higher effect include seedling damping-off, downy mildew, late blight, stem rot, root rot and black root that Mastigomycotina causes, and clubroot that clubroot fungus causes.
• g ai means weight (in gram) of an active compound of agricultural chemical in gram.
• the plants were grown at room temperature (controlled at 20°C) for 4 weeks, and then the degree of epiphytation of clubroot on the roots was examined to evaluate the incidence of disease according to the following equation.
• Incidence of disease [ ⁇ ( indicence index x diseased plants for each grade of severity ) / examined plants x 3 ] x 100
• a Chinese cabbage seed was dipped in a suspension concentrate of Compound A prepared according to Formulation Example 1 described below for 2 seconds, dried in air on aluminum foil for 1 hour to obtain a seed painted in a rate of Compound A 6600 g ai/100 kg seed (coated Chinese cabbage seed containing 0.22 mg of Compound A per seed).
• a slurry treatment with a suspension concentrate of cyazofamid (Ranman flowable (trade name) manufactured by Ishihara Sangyo Kaisha, Ltd.) was carried to obtain a seed painted in a rate of cyazofamid 3300 g ai/100 kg seed (coated Chinese cabbage seed containing 0.11 mg of cyazofamid per seed).
• Mixing with soil is carried out by adding Compound A dust formulation prepared according to Formulation Example 2 described below in the polluted soil in a prescribed amount, and mixing, and the mixed soil was filled in a pot and each Chinese cabbage seed was sown in the soil in a pot.
• the plants were grown at room temperature (controlled at 20°C) for 4 weeks, and then the degree of epiphytation of clubroot on the roots was examined to evaluate the incidence of disease according to the following equation.
• Incidence of disease [ ⁇ (incidence index x diseased plants for each grade of severity)/(examined plants x 3)] x 100
• a rapeseed seed was dipped in a suspension concentrate of Compound A prepared according to Formulation Example 1 for 2 seconds, dried in air on aluminum foil for 1 hour to obtain a seed painted in a rate of Compound A 6600 g ai/100 kg seed (coated rapeseed seed containing 0.22 mg of Compound A per seed).
• a suspension concentrate of cyazofamid was similarly treated to obtain a seed painted in a rate of cyazofamid 3300 g ai/100 kg seed (coated rapeseed seed containing 0.11 mg of cyazofamid per seed).
• the plants were grown at room temperature (controlled at 20°C) for 4 weeks, and then the degree ofepiphytation of clubroot on the roots was examined to evaluate the incidence of disease according to the following equation.
• Incidence of disease [ ⁇ (incidence index x diseased plants for each grade of severity)/(examined plants x 3)] x 100
• seeds were treated also with a chemical solution diluted in 1330fold to obtain seeds painted in a rate of Compound A 10 g ai/100 kg seed (coated seed containing 0.00075 mg of Compound A per seed).
• a suspension concentrate of cyazofamid was diluted in 65-fold, and according to a similar method, seeds painted in a rate of cyazofamid 100 g ai/100 kg seed were obtained.
• Healthy soil was filled in 1/25000 a pot, and the above-mentioned seeds were sown in a rate of 5 seeds/pot.
• zoosporangium suspension liquid of Phytophthora capsici controlled in a rate of 1 x 10 3 /ml was sprayed and inoculated on the surface of soil in a rate of 10 ml/pot.
• the seedlings were grown at room temperature (controlled at 25°C), and on 49 days after sowing, the number of infected plants was counted to evaluate the incidence of disease according to the following equation.
• a chemical solution was prepared by diluting a suspension concentrate of Compound A prepared according to Formulation Example 1 with water so that a concentration of Compound A became 100 ppm. Three (3) seeds were sown in 1/25000 a pot in which the polluted soil was filled.
• the plants were grown at room temperature (controlled at 20°C) for 4 weeks, and then the degree of epiphytation of clubroot on the roots was examined to evaluate the incidence of disease according to the following equation.
• Incidence of disease ⁇ incidence index ⁇ diseased plants for each grade of severity / examined plants ⁇ 3 ⁇ 100
• Planting hole treatment was carried out as follows. Three holes (diameter: 1 cm, depth: 1 cm) were made on soil to be tested in a pot, and one Chinese cabbage seed was sown in the hole and the planting holes were treated with a dust formulation of Compound A prepared according to Formulation Example 2. After treatment with the formulation, the holes were covered with soil.
• Post-sowing and pre-covering with soil treatment was carried out as follows. Three (3) seeds were sown on the surface of soil to be tested in a pot and a dust formulation of Compound A prepared according to Formulation Example 2 was sprayed uniformly over the surface, and soil was covered in a depth of 1 cm.
• the plants were grown at room temperature (controlled at 20°C) for 4 weeks, and then the degree of epiphytation of clubroot on the roots was examined to evaluate the incidence of disease according to the following equation.
• Incidence of the disease ⁇ ( incidence index ⁇ diseased plants for each grade of severity ) / examined plants ⁇ 3 ⁇ 100
• a chemical solution was prepared by diluting a suspension concentrate of Compound A prepared according to Formulation Example 1 with water. Three (3) seeds were sown in 1/25000 a pot in which the polluted soil was filled, and the seeds were covered with soil, and then 5 ml of the chemical solution was irrigated on the whole surface of soil in the pot.
• the plants were grown at room temperature (controlled at 20°C) for 4 weeks, and then the degree of epiphytation of clubroot on the roots was examined to evaluate the incidence of disease according to the following equation.
• Incidence of disease ⁇ incidence index ⁇ diseased plants for each grade of severity / examined plants ⁇ 3 ⁇ 100
• the present invention is useful as a method of controlling plant diseases that exerts an excellent controlling effect.

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• Life Sciences & Earth Sciences (AREA)
• Agronomy & Crop Science (AREA)
• Pest Control & Pesticides (AREA)
• Plant Pathology (AREA)
• Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
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• Wood Science & Technology (AREA)
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• Agricultural Chemicals And Associated Chemicals (AREA)
• Pretreatment Of Seeds And Plants (AREA)

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• 2008
  • 2008-01-04 JP JP2008000034A patent/JP2008189658A/ja active Pending
  • 2008-01-10 EP EP08000354A patent/EP1943901A3/fr not_active Withdrawn

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